An Historical Account of English Money, 3rd Edition
Stephen Martin Leake, Esq, 1793
Richard III

Richard III. A. D. 1483.

Though this King reigned but little more than two years, he coined Money both of gold and silver. Presently after his coronation, Robert Brakenbury, Esq. was constituted [Pat. dat. 17 July, 1 R. 3, p. 5, m. 3.] master-worker of the Money in the Tower, realm of England, and town of Calais, and marches of the same: and by indenture three days after, [20 July, 1 R. 3.] the pound of gold was to make forty-five Rials at ten Shillings each; with Half Rials and Ferlings; Angels, at six Shillings and Eightpence each; and Angelets making by tale twenty-two Pounds ten Shllings, and the pound of sterling silver, to make a hundred and twelve Groats and a Half; Half Groats, Sterlings, Halfpence, and Farthings, making in tale thirty-seven Shillings and Sixpence, being the same standard and value as the fifth of Edward the Fourth.

It is supposed, that he only coined Angels and Half Angels, for no other, I think, have yet been discovered. These Angels are like his predecessor's, and have a boar's head for the mint-mark; the white boar being his cognizance.

The silver Money is like that of Richard the Second, but a third part lighter; the indenture weight of these Groats being but two pennyweights three grains. All that are well preserved, and do not exceed this weight, belong to this Richard; but they are generally clipped into the letters, and therefore a proper allowance must be made, both for short weight in the coinage (few Groats of any of our King's coming within five or six Grains of the indenture weight) and also for the clipping. Some, if not all of this King's have the boar's head for the mint-mark. He used the old open crown upon his Money, and the double-arched crown upon his great seal, like Edward the Fourth, but the crosses patè, and fleurs de lis upon the circle.

In Ireland, in his first year, there was some regulation made at Dublin, buy an act of Parliament, [Ware's Antiq, ch. 25. Eng. Hist. lib. p. 163.] for breaking of all counterfeit Money, which was confirmed in the following reign; but it does not appear he coined any other Money in the stead of it.